National Public Seating's 300 Series Premium Triple-Brace Steel Folding Chair is a stronger version of the best-selling 200 Series. Three U-shaped cross braces and double hinges on each side strengthen the solid 18-gauge tubular steel frame. The ergonomically-designed waterfall front seat and double-contoured back ensure comfortable seating for long periods of time. Plastic glides protect floors, and chairs fold for easy storage. Choose from several attractive frame colors. National Public Seating's 300 Series Premium Triple-Brace Steel Folding Chair comes with a 10-year manufacturer's warranty. Use with National Public Seating's 84 Series Chair Truck and DY35 & DY50 Series Chair Dollies.